Home / 6,715.12-9,270.08-4,480.72

Finding the Fourth Proportional to 6,715.12, 9,270.08 and 4,480.72

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Solution

The fourth proportional to 6,715.12, 9,270.08 and 4,480.72 is: 6,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.12 : 9,270.08 = 4,480.72 : x
  2. Step 2: Convert to fraction form
    6,715.12/9,270.08 = 4,480.72/x
  3. Step 3: Cross multiply
    6,715.12x = 9,270.08 × 4,480.72
  4. Step 4: Simplify right side
    6,715.12x = 41,536,632.86
  5. Step 5: Solve for x
    x = 41,536,632.86/6,715.12
  6. Step 6: Final answer
    x = 6,185.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.